4.3.1          Overall Protection of Human Health and the
               Environment -- Support Technologies

Support technologies would protect human health and the
environment by eliminating the risks associated with exposure of
residents to PCB-contaminated soil and rock, sediment, sludge,
solid waste, and capacitors at the six CD sites because these
materials would be permanently removed from the sites to achieve
the cleanup levels presented in Section 3.1.1.  White goods,
scrap metal, clay material, building remnants, and other solid
waste that may also be contaminated with PCBs would be
permanently removed from the six sites, thus protecting human
health and the environment.  Excavation of PCB-contaminated
material should also eliminate the potential for future releases
of PCBs to groundwater, surface water, and air.  

Support technologies for secondary contaminants will protect
human health and the environment by reducing PCB levels in (1)
the lagoon water at the Winston-Thomas Sewage Treatment Plant
site, 
(2) the decontamination water from decontamination procedures,
and (3) the treatment process water from treatment technologies
because this water would be treated using a pump-and-filter
system to meet the City of Bloomington's water quality standards
before discharge to the storm or sanitary sewer system.  Support
technologies for secondary contaminants will also protect human
health and the environment by eliminating the risks associated
with exposure of residents to pipes contaminated with PCBs at the
Winston-Thomas Sewage Treatment Plant site because the
contaminated pipes would be permanently removed from the site.